162170543455 has 4 divisors (see below), whose sum is σ = 194604652152. Its totient is φ = 129736434760.

The previous prime is 162170543453. The next prime is 162170543471. The reversal of 162170543455 is 554345071261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 554345071261 = 1597 ⋅347116513.

It is not a de Polignac number, because 162170543455 - 2¹ = 162170543453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162170543453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16217054341 + ... + 16217054350.

It is an arithmetic number, because the mean of its divisors is an integer number (48651163038).

Almost surely, 2^162170543455 is an apocalyptic number.

162170543455 is a deficient number, since it is larger than the sum of its proper divisors (32434108697).

162170543455 is an equidigital number, since it uses as much as digits as its factorization.

162170543455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32434108696.

The product of its (nonzero) digits is 504000, while the sum is 43.

The spelling of 162170543455 in words is "one hundred sixty-two billion, one hundred seventy million, five hundred forty-three thousand, four hundred fifty-five".